Home / 787,378,037.40-1,086,590,809.62-434,946,726.36

Finding the Fourth Proportional to 787,378,037.40, 1,086,590,809.62 and 434,946,726.36

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Solution

The fourth proportional to 787,378,037.40, 1,086,590,809.62 and 434,946,726.36 is: 600,231,519.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,378,037.40 : 1,086,590,809.62 = 434,946,726.36 : x
  2. Step 2: Convert to fraction form
    787,378,037.40/1,086,590,809.62 = 434,946,726.36/x
  3. Step 3: Cross multiply
    787,378,037.40x = 1,086,590,809.62 × 434,946,726.36
  4. Step 4: Simplify right side
    787,378,037.40x = 472,609,115,537,080,960
  5. Step 5: Solve for x
    x = 472,609,115,537,080,960/787,378,037.40
  6. Step 6: Final answer
    x = 600,231,519.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.